If the HSI ohm reading is infinite

Technicians can use the onboard "Test" pins to force a manual defrost cycle

direct installation onto service ports

The 50/60 Hz compatibility and 2

What is the purpose of the 3-inch insertion length

Reznor 205882 Vent Kit 320788-704 If the HSI ohm readingThe Reznor 205882 Vent Kit is a critical component for completing a concentric vent installation on high efficiency Reznor CAUA gas fired heaters. Specifically engineered for CAUA 150 and 200 models, this CC6 horizontal vent kit facilitates the proper intake of combustion air while safely exhausting flue gases through a single wall penetration. The 6 inch concentric configuration eliminates the need for multiple holes in the building envelope,